5 Francs - Baudouin I French text

Belgium ran parallel French- and Dutch-language coin series throughout Baudouin I's reign, a reflection of the country's deepening linguistic federalization rather than any minting necessity. The French-text and Dutch-text versions were struck in identical quantities and circulated together without distinction in daily use — the bilingual tension was political theater, not monetary policy.

The copper-aluminium-nickel alloy was chosen partly for its resistance to the alkaline environment of vending machines, which by the mid-1980s had become the primary driver of Belgian small-denomination coinage specifications.